Use the Full Check command to check whether a PDF is compliant with accessibility standards of Web Content Accessibility Guidelines (WCAG) 2.0. You can choose which kinds of accessibility items to check for and how to view the results.

To check accessibility with the Full Check command, please do as below:

A document is accessible if it can be used by people with disabilities, such as visually impaired people. Foxit PDF Editor allows users to evaluate the accessibility of your documents and identify areas that may be in conflict with Foxit’s interpretations of referenced guidelines, create accessibility report, view the Full Check results, and fix accessibility problems. 

Foxit PDF Editor allow users to easily send, sign and save PDF documents and forms using the industry's most widely used eSignature solution. Before signing PDFs with DocuSign, you need to go to Help > About Foxit PDF Editor > click Check for Update… in the pop-up window to download and install the DocuSign plugin.

Signature Properties dialog box provides basic information about the signature, including the signer, reason, date, location validity summary and details of certificate, etc.

1. Select the Hand command.

2. Right-click the signature field, or right-click the signature in the Digital Signatures panel and choose Show Signature Properties from context menu.

3. In Signature Properties dialog box, you can get the information as follows:

The Signature panel shows information about each signature and time stamp in the document as well as the change history of the document since the first signature.

Open the Signature panel

Click the Signature button on the left of Navigation Pane.

When you validate or view properties of a digital signature or an embedded timestamp, the validity status may display “unknown” or “could not be verified”. You need to add the certificate that issued your digital IDs as well as the time stamp server to the Trusted Certificates list. 

To add a trusted digital certificate to the Trust Certificates list, please do the following: 

Time stamps are used to specify the date and time you signed a document. A trusted time stamp proves that the contents of your PDFs existed at a point-in-time and have not changed since then. Foxit PDF Editor allows you to add a trusted time stamp to digital signatures or documents. 

Only the author can certify his/her own PDF documents. The author can specify what changes can be made to the file after certifying. Whenever approved changes are made, the certificate remains valid. If a reader tries to make changes you haven't allowed, the certificate is invalidated and any subsequent users will be notified that the document was tampered with.

To certify your PDF, please do the following:

For a digitally signed document (which might have been signed several times), you can view the differences (if any) between a signed version and the current version you have.

To compare a signed document with the current version, do as the following:

A signed version will be automatically saved each time you sign a PDF with a digital signature. If a digitally signed document was modified, you can still view the signed version without the modification. For a document digitally signed several times, you can view each signed version without the changes made after each signature was applied. All signed versions along with their corresponding digital signatures are listed in the Digital Signatures panel.

To view a signed version of a digitally signed PDF, do as the following: